MICRO-FAUNAL DISTRIBUTION WITH EFFECTIVE VARIATION OF PHYSICO-CHEMICAL PARAMETERS IN TWO DIFFERENT ZONES OF FRESHWATER ECOSYSTEM IN BANKURA DISTRICT OF WB, INDIA

The Bankura district of West Bengal is with full of static water bodies like pond, reservoir, water tank etc. Most of these water bodies are being used by local residents for their daily purposes and some are also used for economic purposes such as fish culture. The unaware use of water causes some changes in physico-chemical parameters of some ponds of Bankura town. But the Ramsagar zone, which is famous for fish culture; the ponds, as well as the physico-chemical factors of those pond water are well maintained. The sampling was done both in Bankura town zone and Ramsagar zone ponds simultaneously (September, 2015 to February, 2016). After evaluating all the values of the water of those ponds (both from Ramsagar zone and Bankura town zone) it is revealed that, there are extreme changes of values between both the studied areas and zooplankton plays an important role (as bio-indicator) to know the water quality of studied perennial water bodies.